Citric Acid → HCID 86747318, compound

Participants

Reaction Steps

350 mg (2 mmol) of N-t-butoxycarbonylglycine and 202 mg (2 mmol) of N-methylmorpholine were added to 6 ml of methylene chloride. The mixture solution was cooled on freezing mixture, and 0.26 ml (2 mmol) of isobutyl chlorocarbonate was added to the solution. After 20 minutes, 716 mg (2 mmol) of the compound (30) obtained in Example 5 (1) was added to the solution, and the solution was stirred at room temperature for 30 minutes. Then, 10 ml of water was added to the solution, and the solution was acidified with by citric acid. The organic layer was separated from the solution and was removed distillation after drying over sodium sulfate. Ethyl acetate--ether was added to the residue, then the product came out of the solution, and the solid was filtered off to obtain 776 mg of the subject compound (84) in a 75% yield. The results of the analysis of this compound were as follows:

Provenance & Evidence